I just found this when i tried to search more info about bitcoin earlier this day,
https://www.investopedia.com/terms/s/sell-in-may-and-go-away.aspWhat Is "Sell in May and Go Away"?
"Sell in May and go away" is a well-known financial-world adage. It is based on the historical underperformance of some stocks in the "summery" six-month period commencing in May and ending in October, compared to the "wintery" six-month period from November to April. If an investor follows the this strategy, they would divest their equity holdings in May (or at least, the late spring) and invest again in November (or the mid-autumn).
I know that thread is talking about return of stock, not cryptocurrency, then i will show you this (bitcoin return on every month)

From this pic, we can take a conclusion if after May - Oct, bitcoin price seems more likely in "Red" instead of "Green". What do you think? Is this coincidence?
Vote the poll & give your reason.